Studies on condensed pyrimidine systems. 23. Synthesis of 2,4-diaminopyrido[2,3-d]pyrimidines from beta-keto esters.
D004952:Esters; D011743:Pyrimidines / Q000138:chemical synthesis*; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
D004952:Esters; D011743:Pyrimidines